大直径铝合金双曲率薄壁件拉深成形技术  

Deep Drawing Technology for Large Diameter Double Curvature Aluminum Alloy Thin-Walled Part

作　　者：冯苏乐[1] 李林才 罗益民[1] 沈宏华[1] 徐爱杰[1] 杨学勤[1] FENG Sule;LI Lincai;LUO Yimin;SHEN Honghua;XU Aijie;YANG Xueqin(Shanghai Spaceflight Precision Machinery Institute,Shanghai 201600,China;Hunan Aerospace Universal Communication Technology Co.,Ltd.,Changsha 412000,Hunan,China)

机构地区：[1]上海航天精密机械研究所,上海201600 [2]湖南航天环宇通信科技股份有限公司,湖南长沙412000

出　　处：《上海航天》2019年第2期104-110,共7页Aerospace Shanghai

基　　金：新一代载人运载火箭研制项目(718-MY-01)

摘　　要：为提高运载火箭贮箱的研制效率,利用有限元仿真技术对某运载火箭贮箱瓜瓣零件的成形工艺进行研究。采取理论分析、数值模拟等手段,分析了压边力、压边形式、压延筋、模具间隙等工艺参数对瓜瓣零件成形的影响,对拉深模结构形式及其工艺参数进行优化。结果表明:采用"双曲面+单拉延筋"设计,当模具间隙设为18 mm时,成形零件的最大减薄率在10%以内,满足设计指标要求。In order to improve the development efficiency of the carrier rocket tank,this paper studies the forming process of a new carrier rocket melon petal part by use of the finite element simulation technology,and finds the influence of key factors such as blank holder force,blank holder surface,draw-bead structure and die clearance based on theoretical analysis and numerical simulation.The mould structure and its technical parameters are optimized.The results show that by use of the double curved blank holder surface with the single draw-bead,the thinning rate of the forming part is less than 10% when the die clearance is 18 mm,which satisfies design requirements.

关 键 词：数值模拟 瓜瓣零件 模具设计 结构优化 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391.9[电子电信—信息与通信工程]